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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 766 (PERSONALIZATION SYSTEM)DESCRIPTION AND OPERATIONVEHICLE PERSONALIZATIONPROGRAMMING FEATURESAUTOMATIC DOOR LOCKS
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Automatic Door Locks

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Automatic Door Locks
WARNING: This page is about a different car, the 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

Continue with the following steps in order to personalize the automatic door locks:

  1. Press hold the LOCK button on the power door lock switch for 10 seconds. The vehicle will chime with the number of chimes corresponding to the current mode. Refer to Automatic Door Locks modes.
  2. Press and hold the LOCK button on the power door lock switch for 10 seconds again in order to advance to the next mode. The vehicle will chime with the number of chimes corresponding to the mode.
  3. Continue to press and hold the LOCK button on the transmitter until the desired mode is reached.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.